Internal-combustion engine.



R. R. BELL.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED NOV. 9,1916.

Patented Sept. 10, 1918.

INVENTUR /f% @M/L ROLLO R.-BELL, OF PASADENA, CALIFORNIA.

INTERNAL-COMBUSTION ENGINE.

Application filed November 9, 1916. Serial No. 130,397.

To all whom it may concern:

Be it known that I, RoLLo R. -BELL, a citi- Improvements inInternal-Combustion En-,

gines, of which the following is a specification.

My invention relates to improvements in internal combustion engines andthe objects of my improvements are, to provide cylinders on the oppositesides of a crank shaft having the stresses in the operating partsequalized by forming expansion in the cylinder onone side of thecrankshaft when the cylinder on the opposite side is under compression;to equalize the stresses in the engine by having the pistons in theopposite cylinders rigidly connected; to generate gas and steam in oneand the same cylinder in successive operation; to provide means on theends of the cylinders by which gas and water can be inJectedalternately;- the invention consisting in the construction, combinationand arrangements of devices hereafter more fully described and claimed,and illustrated in the accompanying drawing, in which:

Figure 1 is my device in vertical longitudinal section, one cylinderready for explosion and the other cylinder ready for compression.

Fig. 2 is my device in vertical longitudinal section, one cylinder underexplosion and the other cylinder closing up for compression.

Fig. 3 isthe feeding pump which supplies fuel and waterto the combustionchamber.

Fig. 4 is my spark plug forming at the,

posite sides of the crank-shaftQ rigidly to one body. The inner pistons10 and 11 are slidably mounted within. the piston cylinders, two of theinner pistons, on the opposite sides of the crank shaft forming also onebody by the cross-head plates 12 and 13. The upper guide bar 4: connectsthe housings 1 and 2 on the upper part.

Grooves 15 are provided in the innersurface of the housings 1 and 2 toallow a communication from the housing through the grooves 15 in thehousing over to the grooves 16 in the piston-cylinders 5 and 6, andfurther on through the inlet recess 17 in the housing and the inlet port18 in the pistoncylinders with the inside of the piston-cylin 'ders.

Normally, the housings form merely air compressors, the air beingadmitted through suitable inlet valves, not shown in the drawing, at theopenings 19. Such construction is especially adapted for a low-gravityfuel oil, The fuel oil' is compressed and injected by special pumps20,attached to the endsof the housings, while the piston rods 21 of.

(siuch pumps are secured to the piston-cyliners.

'A pump of such construction, suitable to inject the fuel oil and waterinto the device is more clearly illustrated in Fig. 3, the numeral 22indicating the end plate of the housing on which the cylinder 23 for thepump is formed or to which the cylinder may be suitably attached.- Thepump piston 24: is slidably disposed in the cylinder '23 having thepiston rod 25 secured thereto. Conduits 26 and 27 areprovided inside ofthe piston rod 25 communicating with the inside of the piston cylinders.Check valves 28 and 29 are'disposed inthe pump-piston regulating thecommunication of the chambers 30 and 31 with conduits to the interior ofthe piston-cylinders 5 and '6; A connec tion 32 is provided to allow theattachment of a suitable feedin valve to the chamber 30, preferably for%he fuel oil, while another connection 33 is provided to allow the useof water through the chamber 31.

The pitman 34 connects the crank shaft 9 withthe cylinder pistons 5 and6, as the cylinder pistonson the opposite sides of the crank "shaft areattached together, this causin'g always the same direction in themovements of the cylinder pistons on opposite sides of the crank shaft.The pitman 35 operates the two inner pistons in a similar manner asthese pistons also form one body,

the direction in the movements-of the inner pistons being the oppositeto the cylinderpistons.

The operation of my engine is as follows Under the presumption that theengine is turning in the direction indicated by the a center of theengine, while the cylinderpiston 6 will slide outwardly, the explosionhaving force until the port 18 in the cylinder piston. passes theexhaust 37, such position being illustrated at the left in Fig. 2.

After the waste has escaped through the exhaust as described above, thepistons come to a position as shown at the left in Fig. 1,

the inside of the cylinder piston filling again with fresh air throughthe channels 15, 16, recess 17 and port 18. Completing its cycle thepiston cylinder 6 will move toward the center of the engine and theinner piston 11 will move outwardly, thereby cutting ofi communicationof the port 18 with the exhaust 37 and compression begins.

At the same time with the compression of the air in the cylinder piston,the fuel oil in the chamber 30 of the pump is also compressed [and is inthis compressed form injected past the check valve 29. see Fig. 3,through the conduit 27 into the cylinder piston. In Fig. 1 to the rightit will be notlced that at the highest compression between the innerpiston 11 and the cylinder piston 6, the chamber 30 in the pump is alsounder highest compression caused by the pump piston 24.

The explosion in the cylinder piston and the moving of thecylinder-piston outwardly cause also the sliding of .the pump piston 24outwardly, resulting in anexpansmn or suction on one side of the pumppiston, the chamber 30, thereby filling the chamber with new fuel oil;and resulting also in a compression at the other side of the pum piston,the chamber 31, thereby causingt e water accumulated in the chamber 31to pass through the conduit 26 in the pump-piston rod into the cylinderpiston. As thegas in the cylinder piston in this position has justexploded, it is highly heated and the water spray injected by the pumpwill be expanded and vaporized into steam. The vapor created is also ofimportance in using low-gravity fuel oil.

For startmg the engine, it will easily be understood that better fueloil can be injected through the connections 19 on the housings:

In connection with my engine I prefer to emma use a spark plug asillustrated in Fig. 4, the numeral 38 indicating the material in thecylinder piston, while the numeral 39 indicates the material in thehousing.

The spark plug is constructed in two halves, one of which is secured tothe cylinder piston and the other is secured to the housing. A steadycurrent is supplied to the stem 40. This would naturally cause apermanent spark, but as the stem is insulated by the insulation 41 fromthe metal, no spark can occur until the stem 40 passes over the pin 42in the second half of the spark plug. This pin is also insulated fromthe metal, in this case by the insulation 43, and sparking can feedingpump is delivered to the inside of the cylinder piston.

2. In internal combustion engines having a housing: A compressor, acylinder piston slidably mounted in the compressor, an inner pistonslidably mounted'within the cylinder piston, a feeding pump secured tothe housing, a piston slidably mounted within the feeding pump, a pistonrod secured at its one end to the piston Within the feeding pump andatits other end to the cylinder piston, a conduit from the chamber atthe one side of the piston within the feeding pump through the feedingpump piston rod communicating with the inside of the cylinder piston, aball check valve controlling the passage of air, fuel or liquid throughthe conduit, a conduit from the chamber at the other side of the pistonwithin the feeding pump through the feeding pump piston rodcommunicating with the inside of the cylinder piston, a ball check valvecontrolling the passage of air, fuel or liquid through the conduit,grooves in the inner surface of the housing and grooves and ports in thecylinder piston wall co-acting to form a bypass from the compressor inthe housing to the inside of the cylinder piston at the time of highestcompression in the compressor.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

some a. BELL.

Witnesses:

O'r'ro H. KRUneER, C. MrrsoHLER.

